关节式分相烧伤机理分析及防治对策

对电气化铁路机车带电闯分相的危害进行了统计分析,又对不同分相压差下机车闯分相时发生的不同烧伤现象及电弧产生发展机理进行了深入分析,对关节式分相处承力索烧伤的现象给出了合理的理论解释。对发生机车闯分相时牵引变电所保护装置的动作情况进行了分析阐述,提出了牵引变电所保护相间短路时的保护整定原则。对各种情况下的分相烧伤问题提出了具有针对性的防治措施。

Mechanism Analysis and Countermeasures of Burning Loss of Articulated Phase

To the problem of locomotive charged through split-phase in electric railway,this paper makes statistical analysis about the hazards,compares the differences of burning loss and arc formation mechanism under differential pressures of split-phase,and gives the reasonable explanation for the burning loss of catenary wire at the articulated wire.It also analyzes the operation status of traction substation's protection devices,and put forward the protection setting principle when the protection phase-to-phase s...